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Growth modification

A removable appliance called a ‘Twin Block’ is frequently used to reduce the prominence of upper teeth. Prominent upper teeth which are not covered by the lips at rest are prone to trauma and treatment can be carried out to reduce their prominence, retracting them to allow lip closure and reduce the risk of damage to the front teeth.


A Twin Block appliance consists of an upper and lower removable appliance which is worn all the time. It works by retracting the upper teeth and proclining the lower teeth, thereby reducing the horizontal distance between the upper and lower teeth. There is also a small element of increased growth of the lower jaw during treatment, helping it to grow to its maximal potential, which is why these appliances are best used when children are growing. You will not be left with a prominent lower jaw if these appliances are used!

What our customers are saying

"I am so happy with the knowledge base of Ashleigh Nocher in Shankill Bank Orthodontic Practice, she really enjoys treating all of her patients."

- Robert Gilmer - Belfast

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235 Shankill Road

Belfast, BT13 1FE

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